Hydrostatic control for pumps.



APPLICATION FILED C. 26. I-Hif` Patented Jan. T. 1919.

l 6:/ .M l md WILLIAM MA STEPHENSON, OF DALLAS, TEXAS.

HYDROSTATIC CONTRL FOR PUMPS.

Spccication of Letters Patent.

Patented Jun. 7, 1919.

y Application med October 26, 1917. Serial No. 195,6764

To all whom it may concern.'

Be it known that I, WILLIAM M. STEPHEN soN, a citizen of the UnitedStates of America, residing at Dallas, in the county of Dalllas andState of Texas, have invented :i

certain new and useful Improvement in Hydrostatic Controls for Pumps, ofwhich the following is a specification.

This invention relates to a, new und useful improvement in a hydrostaticcontrol for pumps, or automatic pressure governor io: usc in connection.with well pumping sys tems, and particularly uppcrtnins to aV form ofhydrostatic governor adopted to exercise a, controlling relation overthe pump with which it is connected.

A purpose of this invention is to provide s compression chamber adoptedto be disposed infthe well and having connection with an automaticallycontrolled air pressure valve placed in en air pressure line for thepurpose of regulating the pressure of Athe compressed air through saidline, The

air pressure line herein mentioned is adapted to irnish o continuouspressure, either of gas or air, to a pumping heed or engine used `foroperating the pump of the oil well. The primary purpose of the inventionis to therefore provide means for automatically starting and stoppingthe engine, pumping the oil Well at times 4when the rise of oil in theWell will be suilicient to justify the pumping therof.

With the above and other objects in view the invention has relation to acertain combination and arrangement of perts, en example ofwhich isdescribed in the following specification, pointed out in the appendedclaims, and illustrated in the accompanying drawings; wherein, A

Figure 1 represents a view of the entire system herein described, partsbeing shown in section and parte being shown in elevation.

Fig. 2 illustrates a form of pressure reguloting valve and correlatedparts.

Fig. 3 illustrates a. front sectional view of the device shown in Fig.2. n

Referring now more in particular to the drawings, wherein the same partsthroughout are designated by the same reference characters, the numeral11 indicates a form of tubular well casing, well known to thoseconversant in the art. This casing has its head at the ground surfaceand extends to the oil bearing strata below Where it terminates in onopen end adapted to receive the oil ther-cinto. A usuel form ofdischarge pipe 2 is provided to discharge the oil from the depths of theWell. A strainer tube 3 is usually provided on the lower extremity ofthe discharge pipe. A volvo 4 is disposed in thc lower extremity oi' thedis-- charge pipeA 'The usuel torni oi' piston und connecting rod il isarranged in the Working.' lmrci of the fywlinfler 7 which hns connectionwith the iliwiim,ff' pipe und muy be coflsiflffz'fdi .i foutinuetwn ofuid wipe This @Quoi-f tino: u Mfr-loir mi` :w il i@ known to iiwsewnvrrsuni in the nrt. extends ii'irougimui the r-nglh oi the dischargepipo und hes f onncrtion with o pison rod 8 oi e steam or air hond il ofsuy appropriate design und power. Any form of motive power or engine 9muy be used, and it muy receive it's power 'from stemn, compressed niror gas. lt very often occurs that high pressure ges is available fromgas Wells in and about the vicinity of oil fields' und, in such iceses,motive power muy be applied to the motor from such source. This providesn most eftonomirul source of power und where the power from the pressureoi u, Well is ronncizrted up with this system of nutoV motie pumpcontrol it is possible to pump individual oil wells on o very economicalVmais in open rcwr'iurii, or oii receiving chember 10 is secured upon ncover plate 1l which receives and supports the discharge pipe 2. Thischamber is provided `with a cover plate 12 givin Y `access to theinterior thereof Where the stu ng box or other parts correlated with thepiston rod may be adjusted. This oil receiving chamber also nets :is asupport ing buse for the pumping engine. An oil discharging pipe 13 hasconnection with the oil recelving chamber l0 and discharges oil to anypoint of storage or receiving reser voir. A check valve 14 should beincluded in the pipe line 13 for preventing the oil from running beckinto the chamber 10.

A substantially .long tubular compressing chamber 15 is disposed in thewell and supported by the discharge pipe 2. The upper extremity of thecompression tube is formed nir tight through a coupling member 16screw-threaded upon the discharge pipe and in like manner receiving thetube 15. The lower extremity of che compression tube 15 is left open forthe purpose of admitting the rising oil.

(ifi

resson chamber thus enabling the engine to Ee automatieaiy starten] :andstepped by ie Rise 0f Said liquid into the aforesaid Wei parts.

5 3. in a weil pumping apparatus, n pipe line through which liquid m25'Ue discharged freni a well, a pumping mamie empoyed to carry out theaforesaid purpose, a compression chamber attached te the discharge pipeund having one @nel thereof sealed und the eher end formed open, a pipeline connected with the anmpmssion chamber and connecting with thepumping means for establishing a. contini over.' said pumping means.

in testimony whereof I hereunto affix my signature.

WILLIAM M. STEPHEN SUN.

